Tough to say for sure since I can't see the actual rim, but I wouldn't worry about it. It is odd though that the pressure went down. If it holds overnight should be ok, just take it easy.
that's about the degree of ouchies I have on a set of rims that have been fine for the last 10 years.
Not a big deal to get straightened out once home if you are concerned.
2010 690 EnduroR
2013 500 Exc
20+ years, 100k+ miles, 15 state's, 10 Countries, 3 years on asphault looking for the checkered flag, 7 dirt trying to stay on my minute.